Interesting Fact - Water Your Teacher 7 years ago The average water temperature of the UK's rivers and lakes is 5°C in winter, 18°C in summer. (This could explain why it took me so long to learn to swim.) Share this: Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Share on Threads (Opens in new window) Threads Share on Bluesky (Opens in new window) Bluesky Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email The Mpemba EffectDateJanuary 22,In relation toScience and TechnologyTodayDateJuly 19,In relation toVocabularyInteresting Fact #1057 - The EarthDateJuly 19,In relation toVocabulary